[postgis-devel] [PostGIS] #1641: SQL/MM Spatial exception - geometry crosses an edge
PostGIS
trac at osgeo.org
Thu Mar 1 06:26:29 PST 2012
#1641: SQL/MM Spatial exception - geometry crosses an edge
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Reporter: lrssvt | Owner: strk
Type: defect | Status: new
Priority: medium | Milestone: PostGIS 2.0.0
Component: topology | Version: 2.0.x
Keywords: |
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Comment(by strk):
Replying to [comment:1 lrssvt]:
> How do I determine the correct tolerance?
So to answer this again (I didn't really answer before).
I suggest you use the value that you do tollerate in your topology.
Millimeter precision is enough and your units are meters ? Use 1e-3 !
There is support for specifying a topology-wide tolerance (it's an
argument to CreateTopology)
but no funtion currently really uses it at the moment. You can surely use
it as a reference.
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Ticket URL: <http://trac.osgeo.org/postgis/ticket/1641#comment:6>
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